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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Differences in swallowing between high and low concentration taste stimuli
BioMed Research International, Volume 2014, Article 813084, Year 2014
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Description
Taste is a property that is thought to potentially modulate swallowing behavior. Whether such effects depend on taste, intensity remains unclear. This study explored differences in the amplitudes of tongue-palate pressures in swallowing as a function of taste stimulus concentration. Tongue-palate pressures were collected in 80 healthy women, in two age groups (under 40, over 60), stratified by genetic taste status (nontasters, supertasters). Liquids with different taste qualities (sweet, sour, salty, and bitter) were presented in high and low concentrations. General labeled magnitude scale ratings captured perceived taste intensity and liking/disliking of the test liquids. Path analysis explored whether factors of taste, concentration, age group, and/or genetic taste status impacted: (1) perceived intensity; (2) palatability; and (3) swallowing pressures. Higher ratings of perceived intensity were found in supertasters and with higher concentrations, which were more liked/disliked than lower concentrations. Sweet stimuli were more palatable than sour, salty, or bitter stimuli. Higher concentrations elicited stronger tongue-palate pressures independently and in association with intensity ratings. The perceived intensity of a taste stimulus varies as a function of stimulus concentration, taste quality, participant age, and genetic taste status and influences swallowing pressure amplitudes. High-concentration salty and sour stimuli elicit the greatest tongue-palate pressures. © 2014 Ahmed Nagy et al.
Authors & Co-Authors
Nagy, Ahmed
Canada, Toronto
Toronto Rehabilitation Institute
Egypt, Fayoum
Fayoum University
Steele, Catriona M.
Canada, Toronto
Toronto Rehabilitation Institute
Canada, Toronto
University of Toronto
Canada, Toronto
Holland Bloorview Kids Rehabilitation Hospital
Pelletier, Cathy A.
United States, Little Rock
University of Arkansas for Medical Sciences
United States, Catonsville
Charlestown Retirement Community
Statistics
Citations: 25
Authors: 3
Affiliations: 6
Identifiers
Doi:
10.1155/2014/813084
ISSN:
23146133
e-ISSN:
23146141
Research Areas
Genetics And Genomics
Participants Gender
Female